Scatter plot residuals, please help

Answers

Answer 1

Answer: Residual plot 1: question 1: is scatter plot C.   question 2: perfect model
Residual plot 2: question 1: is scatter plot B.   question 2: Not appropriate model
Residual plot 3: question 1: is scatter plot A.   question 2: Good (but not perfect) model

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Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (3x – 4) feet, (x2 – 1) feet, and (2x2 – 15) feet. What is the perimeter of the triangle if x = 4?

A number divide by 3 algebraic expression

Answers

An algebraic expression is with numbers.
Set the number as x.
So the expression would be:
x/3

Hope this helps :)

The sum of two numbers is 52 . The larger number is 2 less than twice the smaller number .What are the numbers

Answers

Answer:

35.34 and 16.66

Step-by-step explanation:

Given data

let the numbers be x and y

the smaller number = x

the larger number = y

x+y=52--------1

The larger number is 2 less than twice the smaller number

y=2x-2-------2

put y= 2x-2 in eqn 1

x+2x-2=52

3x-2=52

3x=52-2

3x=50

x= 50/3

x= 16.66

put x=16.66 in eqn 1 to find y

x+y=52

16.66+y= 52

y=52-16.66

y= 35.34

Hence the numbers are

35.34 and 16.66

Check

35.34+16.66= 52

The correlation coefficient for poor health and not exercising in a group of people is 0.67. Analyze the following statement: Poor health is caused by not exercising. Is this a reasonable conclusion?

Answers

Options:

Yes; everyone who doesn't exercise is by definition unhealthy.
Yes; the correlation coefficient is above 0.5, so that implies causation.
No; the data doesn't suggest a causation, and many people are healthy who don't exercise.
No; poor health and not exercising are completely unrelated.

The answer is the third option "No; the data doesn't suggest a causation, and many people are healthy who don't exercise." Correlation is two data set that are linked or connected together so in this case it would be a correlation because all of the data is close and connected to each other.

Hope this helps!

Answer:

No; the data doesn't suggest a causation, and many people are healthy who don't exercise

Step-by-step explanation:

I took the quiz and this was the answer.

7 Solve (x² - 11x +29)(6x²+x-2) = 1.

Answers

Answer: The answer is x=0.670

Step-by-step explanation:

ab=1⇒a=1 or b=0 or a=−1 if b is even

So we can just solve three different cases.

Case 1: a=1.
x2−11x+29x2−11x+28(x−4)(x−7)x1x2=1=0=0=4=7

Case 2: b=0.
6x2+x−2(3x+2)(2x−1)x3x4=0=0=−23=12

Case 3: a=−1 and b is even.
x2−11x+29x2−11x+30(x−5)(x−6)x5x6=−1=0=0=5=6(inadmissible)

The possible answers are therefore x= -2/3, 1/2, 4, 6, 7

Henry is making a corn grits recipe that calls for 1/4 cup of corn grits for every 1/2 cup of water. How much water will he need if he uses 1 1/2 cups of corn grits? Enter the number in the box.